2121022010001 has 8 divisors (see below), whose sum is σ = 2828036373184. Its totient is φ = 1414011160080.

The previous prime is 2121022009999. The next prime is 2121022010083. The reversal of 2121022010001 is 1000102201212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2121022010001 - 2¹ = 2121022009999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121032010001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307391 + ... + 2439531.

It is an arithmetic number, because the mean of its divisors is an integer number (353504546648).

Almost surely, 2^{2121022010001} is an apocalyptic number.

It is an amenable number.

2121022010001 is a deficient number, since it is larger than the sum of its proper divisors (707014363183).

2121022010001 is a wasteful number, since it uses less digits than its factorization.

2121022010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756631.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2121022010001 its reverse (1000102201212), we get a palindrome (3121124211213).

The spelling of 2121022010001 in words is "two trillion, one hundred twenty-one billion, twenty-two million, ten thousand, one".